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Show Scientific Analysis of Heat Values of Wood Although wood is only 00 per cent 1 as efficient as coal, certain woods have high heating values which are not fully recognized by many people, according to T. K. Shaw, extension forester of Purdue university. Assuming As-suming IK) cubic feet of solid wood In a standard cord, 4 feet high, 4 feet wide and S feet long, he points out that a cord of seasoned hickory will give out as much heat as a ton of average coal. Oak will produce almost as much heat as hickory, those of the white oak group being most efficient. Other good fuel woods are hard maple, beech, elm, hackberry and ash. Dogwood Is very desirable for use In open fireplaces on account of Its attractive blue flame, and It is also hitrh In heating value, ranking with the white oaks as fuel. Split wood has a lower moisture content than pieces In the round, and therefore has a higher heating value. Part of the aversion to wood as fuel has resulted from the fact that many people use wood which is not thoroughly seasoned. Green wood may be from 5 to 20 per cent less valuable for fuel than air dry wood. Indiana Farmer's Guide. |